Detection element and detector

A detection element comprising:

• a first electrode to which a bias is applied;
• a second electrode;
• an organic conversion layer that is arranged between the first electrode and the second electrode, and is configured to convert energy of a radiation into an electric charge;
• and
• a third electrode arranged in the organic conversion layer, the third electrode being formed in a sheet-like shape arranged in a direction orthogonal to a thickness direction of the organic conversion layer, wherein
• a first distance between the first electrode and the third electrode is smaller than a second distance between the second electrode and the third electrode, and
• a first potential difference between the first electrode and the third electrode is larger than a second potential difference between the second electrode and the third electrode.