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Printable X-Ray Detectors to Bring About Step-Change in Imaging Applications

By MedImaging International staff writers
Posted on 06 Apr 2023
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Image: An image of a thin film multi-energy X-ray detector device (Photo courtesy of Exciton Science)
Image: An image of a thin film multi-energy X-ray detector device (Photo courtesy of Exciton Science)

Most X-ray detectors work in one of two energy levels: hard or soft. Hard X-rays are utilized to penetrate dense substances such as bone or rock, whereas soft X-rays are necessary for imaging living matter like tissue and cells safely. Typically, single-energy detection happens in the hard X-ray range of 10 to hundreds of kiloelectron volts (KeV). For detection in the soft window, energy levels below 1 KeV may be required. Occasionally, an X-ray detector must be capable of functioning across both energy levels. Consider the case of searching for tumors in breast tissue. Currently available multi-energy X-ray detectors, constructed from silicon and selenium, can function in both regions, but their energy sensitivity and spatial resolution are restricted. A promising alternative with greater effectiveness and versatility is now available in the form of metal halide perovskites.

The field of imaging applications could witness a significant advancement following the demonstration of a pathway to multi-energy X-ray detection with increased flexibility and sensitivity by researchers at Exciton Science (Melbourne, VIC, Australia). Developed by a team at Monash University (Melbourne, VIC, Australia), the technology is based on solution-processed, printable diodes made utilizing perovskite thin films, a component generally associated with next-generation solar energy devices.

Perovskite materials are known for their crystal structure and can regulate the intensity of X-ray beams passing through matter. They are also cost-effective to produce. When perovskite is incorporated into a diode device, the process of X-ray attenuation creates charges that can be collected to determine the energy and intensity of the X-ray. The latest research has shown that a perovskite-based multi-energy X-ray detector can operate across a wide range of energies, from 0.1 KeV to the 10s of KeV, surpassing the capabilities of traditional multi-energy X-ray detectors. This breakthrough technology has the potential to revolutionize the field of imaging applications.

Perovskite-based devices have previously been demonstrated to detect hard X-rays on a small scale, ranging from millimeters to centimeters. For the first time, researchers have successfully utilized perovskites for soft X-ray detection, with the potential for scaling up to large areas for commercial applications. Furthermore, since the perovskite detectors can be produced as a thin film, they can be integrated with flexible substrates, opening up possibilities for new device shapes and sizes.

“These perovskite-based detectors can provide rapid response times and offer high sensitivities to enable real-time detection and imaging for complex purposes, including disease diagnoses, detection of explosives and identifying food contamination,” said Dr. Babar Shabbir, a Senior Exciton Science Research Fellow and the study’s first author.

“This work showcases that there's a natural extension of perovskites into printed X-ray detectors,” added Professor Jacek Jasieniak of Monash University, an Exciton Science Chief Investigator and the study’s senior author. “They should be cheaper to make, and could also involve modified film form factors, where you need inherent flexibility. It opens up the field to a whole new set of questions about how to use these types of devices.”

Related Links:
Exciton Science
Monash University 

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89 (75.101852416992): SELECT id,name,title FROM jos_deeppockets WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id != 294743300 AND id != 294743301 AND id != 294743302 AND id != 294743303 AND id != 294743304 AND id != 294743305 AND id != 294743306 AND id != 294743307 AND id != 294743308 AND id != 294743309 AND id != 294743310 AND metakey != 'aacc' ORDER BY `ordering`
90 (431.06079101562): SELECT show_live FROM jos_com_show_setting LIMIT 1
91 (82.015991210938): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (109.91096496582): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (36.001205444336): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (119.92454528809): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (105.85784912109): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (86.069107055664): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (33.855438232422): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (68.902969360352): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (44.107437133789): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (84.877014160156): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (34.093856811523): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (!!!!! 1605.9875488281): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
105 (91.075897216797): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
106 (82.969665527344): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294796751 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (66.041946411133): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294796751 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (707.86476135254): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
109 (230.07392883301): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
110 (154.97207641602): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294796751 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (643.01490783691): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294796751 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (!!!!! 11636.018753052): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
113 (!!!!! 7967.9489135742): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
114 (!!!!! 7725.9540557861): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
115 (!!!!! 8996.0098266602): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
116 (!!!!! 8728.02734375): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
117 (!!!!! 7966.9952392578): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
118 (!!!!! 7647.0375061035): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
119 (!!!!! 7969.856262207): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
120 (!!!!! 10947.942733765): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
121 (!!!!! 304900.8846283): SELECT * FROM jos_deeppockets WHERE jos_deeppockets.cat = 10 AND jos_deeppockets.type = 'deeppockets_item' AND jos_deeppockets.published = 1 AND jos_deeppockets.created + INTERVAL 14 DAY >= NOW() ORDER BY jos_deeppockets.hits DESC LIMIT 7
122 (!!!!! 5869.1501617432): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
123 (!!!!! 12040.138244629): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
124 (!!!!! 5079.0309906006): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294796751 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294796751 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 2011240.9591675): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
126 (353.09791564941): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
127 (493.04962158203): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
128 (324.96452331543): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
129 (!!!!! 2358.1981658936): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
130 (!!!!! 2608.060836792): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
131 (!!!!! 3037.9295349121): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
132 (!!!!! 4036.9033813477): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
133 (441.7896270752): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
134 (375.03242492676): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
135 (231.02760314941): SELECT name FROM jos_deeppockets WHERE id=211
136 (48.160552978516): SELECT name FROM jos_deeppockets WHERE id=211
137 (684.02290344238): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))211((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
138 (556.94580078125): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))211((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
139 (84.161758422852): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
140 (61.03515625): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
141 (!!!!! 21153.926849365): TRUNCATE TABLE jos_trademed_module
142 (!!!!! 1922.1305847168): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294796751 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
143 (!!!!! 1758.0986022949): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294796751 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
144 (!!!!! 2743.0057525635): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
145 (87.02278137207): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
146 (97.990036010742): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
147 (60.081481933594): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
148 (!!!!! 1651.0486602783): SELECT jos_item.* FROM jos_item INNER JOIN jos_number ON jos_item.numberID=jos_number.id WHERE 1=1 AND (jos_item.imgMini<>'') AND jos_item.type='L' AND jos_item.numberID= ( SELECT jos_number.id FROM jos_number WHERE jos_number.journalID IN (10) and jos_number.id in (select distinct jos_number.id from jos_number join jos_item on jos_item.numberid=jos_number.id where jos_item.type='P') ORDER BY (CONVERT(SUBSTRING(issue,1,2),SIGNED) + (CONVERT(SUBSTRING(issue,3,2),SIGNED)*100)) DESC LIMIT 0,1 ) ORDER BY RAND() DESC LIMIT 6
149 (251.05476379395): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
150 (130.89179992676): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
151 (!!!!! 3620.8629608154): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294796751 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294796751 AND type='deeppockets_item' AND published='1' LIMIT 1
152 (!!!!! 3969.9077606201): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=211 or channel_id is null)
153 (553.13110351562): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=211 or channel_id is null)
154 (66.995620727539): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
155 (!!!!! 3896.951675415): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
156 (146.86584472656): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294796751 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294796751 AND published='1' LIMIT 1
157 (!!!!! 7694.0059661865): select jos_twitters.link from jos_twitters where cat=10
158 (!!!!! 6400.1083374023): select jos_facebook.link from jos_facebook where cat=10
159 (!!!!! 2182.9605102539): select jos_google_plus.link from jos_google_plus where cat=10
160 (!!!!! 3206.9683074951): select jos_linkedin.link from jos_linkedin where cat=10
161 (438.92860412598): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
162 (!!!!! 6179.0943145752): insert into jos_banners_delta values (14615,'2025-04-30 08:48:12','3.15.27.235','view'),(14202,'2025-04-30 08:48:12','3.15.27.235','view'),(14203,'2025-04-30 08:48:12','3.15.27.235','view')