Xeroradiography

{{Infobox diagnostic

| Name = Xeroradiography

| Image =

| Caption =

| ICD10 =

| ICD9 =

| MeshID = D014986

| OPS301 =

| OtherCodes =

}}

Xeroradiography is a type of X-ray imaging in which a picture of the body is recorded on paper rather than on film. In this technique, a plate of selenium, which rests on a thin layer of aluminium oxide, is charged uniformly by passing it in front of a scorotron.{{cite web|url=http://www.medcyclopaedia.com/library/topics/volume_i/s/scorotron.aspx|title=Scorotron|publisher=GE|work=Medcyclopaedia}}

The process was developed by engineer Dr. Robert C. McMaster in 1950.{{cite journal | doi=10.1016/0308-9126(86)90020-9 | volume=19 | issue=5 | title=Robert C. McMaster — a personal remembrance | journal=NDT International | pages=356| year=1986 | last1=Berger | first1=Harold }}

As X-ray photon impinges on this amorphous coat of selenium, charges diffuse out, in proportion to energy content of the X-ray. This occurs as a result of photoconduction. The resulting imprint, in the form of charge distribution on the plate, attracts toner particles, which is then transferred to reusable paper plates. In contrast to conventional X-rays, photographic developers are not needed. Hence the term xeroradiography; 'xero' meaning dry in Greek.

It requires more radiation exposure. Historically used in mammography prior to the advent of digital mammography.

Xeromammography is a form of xeroradiography.{{MeshName|Xeromammography}}